Magento不支持的操作数类型问题

Question

我在Magento中遇到了以下问题。现在我已经添加了这个问题的功能。

  

致命错误：不支持的操作数类型   第431行/var/www/html/app/code/core/Mage/Wishlist/Model/Item.php

public function getBuyRequest()
{
    $option = $this->getOptionByCode('info_buyRequest');
    $initialData = $option ? unserialize($option->getValue()) : null;

    // There can be wrong data due to bug in Grouped products - it formed 'info_buyRequest' as Varien_Object
    if ($initialData instanceof Varien_Object) {
        $initialData = $initialData->getData();
    }

    $buyRequest = new Varien_Object($initialData);
    $buyRequest->setOriginalQty($buyRequest->getQty())
        ->setQty($this->getQty() * 1);
    return $buyRequest;
}